package fonts

import (
	"context"
	"testing"

	"gitlab.hive-brain.de/MDietermann/Archduino/internal/module"
	"gitlab.hive-brain.de/MDietermann/Archduino/internal/platform"
)

type fakeRunner struct {
	runCalls  [][]string
	outCalls  [][]string
	installed map[string]bool
}

func (f *fakeRunner) Run(_ context.Context, name string, args ...string) error {
	f.runCalls = append(f.runCalls, append([]string{name}, args...))
	return nil
}
func (f *fakeRunner) Output(_ context.Context, name string, args ...string) ([]byte, error) {
	f.outCalls = append(f.outCalls, append([]string{name}, args...))
	if name == "pacman" && len(args) == 2 && args[0] == "-Q" {
		if f.installed[args[1]] {
			return []byte("ok"), nil
		}
		return nil, errOne
	}
	return nil, nil
}

type eo struct{}

func (eo) Error() string { return "exit 1" }

var errOne = eo{}

type nop struct{}

func (nop) Progress(string, int, int, string) {}
func (nop) Log(string, string)                {}

func TestFontsPlanApplyUsesYay(t *testing.T) {
	r := &fakeRunner{installed: map[string]bool{"yay": true}}
	m := New([]string{"ttf-jetbrains-mono-nerd"}, platform.NewPacman(r), platform.NewYay(r))
	st, _ := m.Detect(context.Background())
	p, _ := m.Plan(context.Background(), st)
	if err := m.Apply(context.Background(), p, nop{}); err != nil {
		t.Fatal(err)
	}
	sawYay := false
	for _, c := range r.runCalls {
		if len(c) >= 2 && c[0] == "yay" && c[1] == "-S" {
			sawYay = true
		}
	}
	if !sawYay {
		t.Fatalf("no yay install; calls=%v", r.runCalls)
	}
}

func TestFontsDetectPresentNoActions(t *testing.T) {
	r := &fakeRunner{installed: map[string]bool{"yay": true, "ttf-jetbrains-mono-nerd": true}}
	m := New([]string{"ttf-jetbrains-mono-nerd"}, platform.NewPacman(r), platform.NewYay(r))
	st, _ := m.Detect(context.Background())
	p, _ := m.Plan(context.Background(), st)
	if !p.IsEmpty() {
		t.Fatal("want empty plan when already installed")
	}
}

func TestPlanForceReinstallsAllFonts(t *testing.T) {
	r := &fakeRunner{installed: map[string]bool{"yay": true, "ttf-jetbrains-mono-nerd": true}}
	m := New([]string{"ttf-jetbrains-mono-nerd"}, platform.NewPacman(r), platform.NewYay(r))
	plan, err := m.PlanForce(context.Background())
	if err != nil {
		t.Fatalf("PlanForce: %v", err)
	}
	if plan.IsEmpty() {
		t.Fatal("force plan must not be empty")
	}
	for _, a := range plan.Actions {
		if err := a.Exec(context.Background()); err != nil {
			t.Fatalf("Exec: %v", err)
		}
	}
	sawReinstall := false
	for _, c := range r.runCalls {
		// yay -S --noconfirm ... (no --needed)
		if len(c) >= 3 && c[0] == "yay" && c[1] == "-S" && c[2] == "--noconfirm" {
			sawReinstall = true
		}
	}
	if !sawReinstall {
		t.Fatalf("no yay reinstall (-S --noconfirm, no --needed) call; calls=%v", r.runCalls)
	}
}

var _ module.Module = Module{}